Harvard Lancaster: Fix in-text locator

Author: adam3smith

lancaster-university-harvard.csl

@@ -427,8 +427,8 @@
         <text macro="author-short"/>
         <text macro="year"/>
         <group>
-          <label variable="page" form="short"/>
-          <text variable="page"/>
+          <label variable="locator" form="short"/>
+          <text variable="locator"/>
         </group>
       </group>
     </layout>